Gas-supply-controlling means.



L. 'A. KORB. GAS SUPPLY GONTROLLING MEANS.

APPLICATION FILED MAR. 15, 1912.

Patentedv NOV. 25, 1913.

1 y Application'med Mai-ch 15,1912. serialnueseoao. j

`To all whom imag comme:

Unrrnn srntrns rATEn'r onricn.

A.' ionB, nrcriwoon, Wns'r vInG'iNrA, Assienon or ONE-HALF To BERNARD IBeit known that l, Lno A. Konn, a citizen ofthe United States, and residing at Richivood,5Nicholas county, State ot Vtest Virgmia', have invented certain new and usejful GasJSupplyJControlling Means; and I Y do. declare the following to be a clear, full,

and yexact description of the invention, at-

ytent-ion beingcalled to the drawing which accompanies `this1application and Iforms a part thereof.

, i Hot-Water fordomestic purposes is genfor use 1s caused to erally'obtained by means of heaters connected with the Water-supply, (service branch), in a manner that Water drawn off` pass through such a heater so that it .becomesfhot during this passage. In most cases gas is the `fuel used l in these heaters, it .being applied by means of suitable burners. Devices have been provided whereby the gas-supply to these burners is automatically controlled in a manner that gas is furnishedI only when water is taken and passes through the heater, the gas-supply at all lother times being cut off.

lVhenever Water is taken these devices are 'rendered active by the iiow' of the Water and `are caused by' meansof suitable intermediate' connections to vactuate in a proper manner a f Y 3 valve Which controls the oxv of gas through thelpipe Wherebythe burners arel supplied.

My invention relates to such Water-actuated means Vanddevices for automatically controlling the gas-supply to a heatereburner and consists of the particular construction of these means and devices as hereinafter described and claimed and as illustrated-in the accompanying drawing, in which Figure 1, shows an elevation of the means and ldevices contemplated by my invention.

Fig. 2, shows a vertical section ofthe same inina'ctive position. Fig. 8, shows in a similar View the parts in 'operative position.

In the drawing, 6 indicates a pipe which serves to .supply gas to the burners o a .Wateraheater ofcustomary type and notl shown Flowfof gas through this pipe is controlled by a cylindrical piston-valve a, contained in a chamber formed by a housing v A, inserted in pipe 6, so as totorm a connected part thereof. 'This valve-chamber is divided by a partition 7 which has a circular opening around which the valve seat 8 is formed. The valve is litted to slide in' this opening and With its head 9 to and from i Specication'fof Letters IPacent.A

- seat i 8.

lholes are uncovered. The gas is opens and admits being immediately cut otf SICKING, OF CINCINNATI, OHIO.

Patented Nov. 25,1913

v lVhen the valve moves from its closed position shown in Fig. k2, into open positlon shown in Fig. 8, the gas passes through p0rt4holes 11, which are arranged in an inclined line, starting from the head of the valve inwardly and whereby the gas is admitted to the burners in a gradually increasing flow which reaches its normal maximum when the 4valve has moved vfarthest away from its seat andyvvhfen all its portgradually Whenfthe valve position.`

gas is used only at" cut off in a similar manner moves back into closing As before explained l intervals totheat cold Water in proportion to the quantity of water drawn off from time to time which Withdrawal causes a How of Water through the heater and through the pipes connected thereto.. The motion of this flowing Water is utilized to actuate the device referred to before and whereby the valve controlling the gas-supply is automatically operatedin a manner that as soon as Water commences to tiovv through the heater and the connected pipes, this valve gasto the burners, the gas lagain as soon as thewater ceases to flow. A pilotfiiam'e from a-vsmall' burner, not subjectto control by this gas-valve, serves to ignite the gas Whenever admitted to the burners. ated-device consistsv substantially of a hollow piston contained in a housing B and which housing is inserted in a vwater-pipe 12, it being` provided with nipples ltol1 connection by means of couplings 14 (Fig. l). This pipe forms a communicating part of the Water-l1eatercirculation and of the hot-` Water-'pi 3e leading to the places of consumption, so t at, Whenever water is drawn Vcausing a ow through the heater, the vWaterin pipe 12 commences also to iioW and passes through housing B.

15 is the inlet to this housing and 16 is the outlet therefrom, thelatter being below the former, and between the two there is an ani nular lip 17 against Whichthe lower part 18- of pistonl Z) is iitted. vThe face'of the lip is grooved and ladapted toliold Water which provides a packing sniiiciently close for the purpose." t

The upperpart 19 of piston b is of reduced diameter and fitted into the out-.v

" Wardly open neck 21 "of the housing, said neck being arranged to Jform a. stuffing box This Water-actu- .23 .is held in place. through the hollow piston is rendered possithe lower end of the of lwhich 22 is the gland whereby packing Passage of water 4 vsage of wat-er through the piston and therecommunication between inlet and outlet 16 of housing B. The interior of the piston is always open to inlet 15 through orts 24. It now water is drawn from any of the outlets in communication with pipe 12, the diminishing pressure below and outside of the piston causes the same to yield f to the higher pressure above and inside of it. Thereupon the piston descends until all of its outlet ports 25 are gradually uncovered as shown in Fig. 3, permitting free {iow of water through it. The piston is connected-to gas-valve a by a rod 26, so that its movements are communicated to the gasvalve and cause the same to open likewise.

27 isa by-pass through which the lower part of housing B outside of the piston communicates directly with inlet 15 and independent of control byl this piston. As soon as closing of the open outlet causes flo-w of water through pipe 12 to cease, the pressure below and outside of the piston rises again by reason of inflow through byass 27. The piston is thereby forced upwart ly until passage through itsports 25 is elo-sed as they pass gradually above lip 17, after which the piston stops in the balanced position shown 1n Fig. 2. This movement at the same time o positive movement y' so 'as new:

tuated device,

closes the gas-valve.

28 is a valve whereby passage through bypass 27 may be regulated, to the proper deree.

The two housings A and B are connected by a yoke 29.

It will be observed that the valve which controls the supply of the gas is subject to by the piston as obtained bythe fiow of water and the use of springs is entirely dispensed with.

Having described my invention, I claim 1. AIn means for controlling the gas-supply to a heater-burner by means of a water-ac the combination of a gas-supply-pipe, a valve controlling passage therethrough, a cylindrical piston-housino` open at one end and provided with an inIet and ..an outlet opening in its side, a water-pipe in communication with these openings, a hollow cylindrical piston closed at both ends movably iitt'ed to this housing and having part ot it eoneentrically contracted, which contracted part extends outwardly through the open end of the housing, a stuiing-box in the piston-housing fitted to this contracted part of the valve, inlet ports in the side ot' the contractedpart of the piston, outlet ports in the side of its wider part and a rod whereby the piston is connected to the valve in the gas-supply-pipe.

2. In means for controlling the gas-supply to a heater burner by means of a wateract-uated device, the combination of a cylindrical piston-housing having between its ends lan annular inwardly projecting lip and beingbpen at one end where an outwardly extended neck is provided, diametrically opposite openings'in this housing, one above and one below the lip mentioned serving respectively for admission and for egress of water, a cylindrical, hollow piston closed at both ends and fitted to contact with the lip mentioned and also into the neck of the housing, vertically spaced ports in the side of the piston to permit water to enter the same and to pass out therefrom, a gas-supply pipe, a valve which controls passage through the same and means to connect. this valve and the piston so that both move together.

3. In means for controlling the gas-supply to a heater-burner by a water-actuated device, the combination of a hollow, cylindrical valve which and a cylindrical, hollow piston which controls the flow of water, a rod whereby both are rigidly connected in axial alineinent., ports to admit water tothe hollow piston, additional ports which form outlets for the water from the piston, ports to permit passage of gas through the valve mentioned, a housing for this valve, a housing'for the piston provided with an annular lip to which the piston is fitted and in which housing said piston occupies a normal position with the outlet ports above this lip, an inlet for water to the housing above this lip,b and an outletfor water below the same, the outlet ports in the piston and the ports in the valve being arranged in a line inclined to the axis ot' vboth so that upon movement a prloportionally graduated passagebf respectively wa- 'ter and gas takes place.

In testimonywhereof, I hereunto aiiix my signature inthe presence of two witnesses.

LEO A. KORB. Witnesses:

Y. W. Dawson, JNO. F. Coon.

controls the {iow of gas 

